DevTools: Allow setting -0 value to object property

Source/devtools/front_end/DebuggerModel.js

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 869 matching lines @@
          */
         function didEvaluateOnCallFrame(error, result, wasThrown)
         {
             if (error) {
                 console.error(error);
                 callback(null, false);
                 return;
             }
             callback(result, wasThrown);
         }
-        DebuggerAgent.evaluateOnCallFrame(this._payload.callFrameId, code, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, generatePreview, didEvaluateOnCallFrame.bind(this));
+        DebuggerAgent.evaluateOnCallFrame(this._payload.callFrameId, code, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, false, generatePreview, didEvaluateOnCallFrame.bind(this));
     },
 
     /**
      * @param {function(?Protocol.Error=)=} callback
      */
     restart: function(callback)
     {
         /**
          * @this {WebInspector.DebuggerModel.CallFrame}
          * @param {?Protocol.Error} error
@@ skipping 80 matching lines @@
             var callFrame = this.callFrames[i];
             callFrame.dispose();
         }
     }
 }
 
 /**
  * @type {?WebInspector.DebuggerModel}
  */
 WebInspector.debuggerModel = null;